Improvement in grain-separators



2 Sheets-Sh eet 2.

L. MORGAN; Grain-Separators.

No. 208,257. 'Patented Sept. 24,1878.

Ira/m UNITED STATES PATENT OEEIcE LYMAN MORGAN, OF PORT WASHINGTON,WISCONSIN.

IMPROVEMENT IN GRAlN-SEPARATORS.

Specification forming part of Letters Patent No. 208,257, datedSeptember 24, 1878; application filed July 16, 1878.

To all whom it may concern.-

Be it known that I, LYMAN MORGAN, of Port Washington, in the county ofOzaukee and State of WVisconsin, have invented certain new and usefulImprovements in Cockle-Separators; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to which it pertains to make and usethe same, reference being had to the accompanying drawing, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to that class of machines for cleaning wheat fromcockle-seed and other impurities which employ a surface caused to movewhile the uncleaned grain is projected upon it, and which surface isfilled with small pockets or indentations for the reception of thecockle and other impurities, but made so small that the grain itselfcannot find lodgment in them.

My improved separator makes use of a large conically-depressed revolvingdisk, upon which the grain is thrown, set in a frame and provided withproper means for being shaken horizontally, and also arranged to betilted by separate sections to dislodge the impurities caught in thecavities, which device of a horizontal disk is arranged to be movedunder the wheat falling upon it. An arrangement to shake the table, soas to separate out the impurities, and an arrangement for tilting it bysections, so as to dislodge the impurities caught in the cavities,constitute my invention.

In the accompanying drawings like letters refer to corresponding partsthroughout.

Figure l is a perspective view of the whole machine. Fig. 2 is avertical section of the same through the center. Fig. 3 is a view of thetop of the machine, and Fig. 4 shows the construction and arrangement ofthe separate sections.

A is the frame-work of the machine, usually constructed of wood, andconsisting of four upright posts, placed at the corners of a rectangle,and connected by four horizontal girts near the bottom and a likeninnber near their top. \Vithin the frame A the triangular vibratingframe B, which consists of a horizontal base and two side piecesinclined toward the center, is suspended by means of two iron straps, UU, fastened at their upper ends to two opposite side girts, and at theirlower ends to the opposite ends of the base of triangular frame B.

Frame B is stayed in a vertical position by means of two parallel ironbars, T and '1", which are pivoted to its base, and a parallel sidegirt, in the manner shown in Fig. 1, and by a similar stay at its top T.This method. of staying permits the free vibration of frame B endwise. Nis ablock, securely fastened to the top of the side pieces of frame B. Dis a strong vertical shaft, stepped in the base of B and journaled in N,as shown in Fig. 2, and provided with pulley Gr. 0 is a shaft, journaledat its opposite ends in two of the posts of the main frame, and providedwith pulley E and suitable means for its connection with the drivingpower. Wis an upright shaft, journaled in two side girts, as shown inFig. I, and provided with pulleys a and F. A belt connects pulleys E andF, and another belt a and G, and motion is thus communicated from O toD. K is a shaft, having a crank or eccentric in its center 01, providedwith a pulley, M. K is journaled in two posts of the main frame, and ison the opposite side from and parallel with C. K is driven through abelt connectin g pulley M and a pulley on G. (Not shown.)

The crank d, through pitman L, pivoted to frame B, gives frame B andshaft D a horizontal shake motion.

Fig. 3 is the place for the reception of the wheat. It consists of aframe-work formed of circular rim P and the hub O, which are connectedby radial arms i t i. I usually construct it with eight radial arms.Between each pair of arms is pivoted, by means of shaft 0, pivoted inrim P, and hub 0, one of the segments 1 2 3 4 5 6 7 8, in such a mannerthat when left free they will swing into the vertical position shown by5. The upper face of the segments is covered with zinc, with small,nearly hemispherical, cavities punched therein, as shown at 3, which arejust of a size not to contain a kernel of wheat, but holding cockleseedand other impurities of less size than a kernel of wheat. Between thehub O and the inner end of the segments there is left a space of two orthree inches breadth.

Upon N is placed a strong circular plate, S, formed with perforations atintervals Y Y and strongly attached to N. Upon the upper side of itsouter rim is an annular cam, R. (Shown in section in Fig. 2 and in Fig.4.) It is cut away at WV, for the purpose hereinafter shown.

Fig. 4 represents one of these segments in vertical section. Each isformed of a frame, k k, shaped as shown in Fig. 3, covered at the topwith the indented zinc 7:, which projects over on one side and restsupon arm 1, as shown in Fig. 4.

a is a weight, which serves to overbalance the segments and swing theminto a perpendicular position when left free. At the inner end of eachsegment, on the lower side of the frame, is attached a flat spring, m,the lower end of which rests and travels upon R and maintains thesegments in the position shown at 1 2 3 in Fig. 3 until the springarrives at WV, when, by the depression in cam It, the weighted segmentis allowed to tilt into a vertical position. By further movement it isrestored to its former position.

My improx'ed separator operates as follows: The wheat is allowed to passinto hopper Z and drop upon the conically-depressed table, whence thewheat rolls oft toward and down through the center into a suitablereceptacle or spout beneath. The cockle and other impurities are caughtand retained in the cavities in the zinc.

Motion by any suitable means is given to shaft 0 and thence to shaft D,which slowly revolves the wheat-table, while at the same time the shaftK, connected with O by means of pitman L and crank d, vigorously shakesthe table. This shaking facilitates the separation. As each segment inthe revolution of the table reaches the point V, Fig. 3, it tilts into avertical position and empties the impurities held in the cavities into areceptacle properly placed beneath, the wheat having all run 05 thatpart of the table when the segment reaches that position. The fartherrevolution of the table rights the segment, the next one is tilted, andso on, a constant stream of cleaned wheat and an intermittent stream ofcockle or other impurities being delivered.

I claim as my invention 1. In a cockle-separator, a tableset'horizontally and arranged to be shaken and horizontally revolved atthe same time, substantially as and for the purposes set forth.

2. A horizontally-placed concave or conical table, constructed insections, each formed with cavities, and arranged to tilt separately foremptying the impurities, substantially as and for the purposes setforth.

3. The combination of the table formed in sections, as described, shaftD, and cam R, substantially as and for the purposes set forth.

4. A segment, 5, with zinc covering, provided with pivoted rod 6,springm, and weight a, substantially as and for the purposes described.

5. The combination of frame A, vibrating frame B, and revolving table,substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

LYMAN MORGAN. lVitncsses E. H. Bo'r'rUM, IRVING T. Foni).

